To boost the BJP’s preparations for next year’s West Bengal Assembly polls, Union Minister and senior party leader Amit Shah will be on a two-day visit to the state from Thursday, during which he will have lunch with tribal and refugee families, the party’s national media in-charge Anil Baluni said on Wednesday. Sharing details of Shah’s visit, he said the party’s former president will hold number of meetings in Bankura and Kolkata with booth workers, influencers and representatives of different communities.